Re: [Qemu-devel] [PATCHv9 2/3] fw_cfg: move qdev_init_nofail() from fw_cfg_init1() to callers

[Eduardo Habkost <ehabkost@redhat.com>]

On Fri, Jul 14, 2017 at 10:40:07AM +0100, Mark Cave-Ayland wrote:
> When looking to instantiate a TYPE_FW_CFG_MEM or TYPE_FW_CFG_IO device to be
> able to wire it up differently, it is much more convenient for the caller to
> instantiate the device and have the fw_cfg default files already preloaded
> during realize.
> 
> Move fw_cfg_init1() to the end of both the fw_cfg_mem_realize() and
> fw_cfg_io_realize() functions so it no longer needs to be called manually
> when instantiating the device, and also rename it to fw_cfg_common_realize()
> which better describes its new purpose.
> 
> Since it is now the responsibility of the machine to wire up the fw_cfg device
> it is necessary to introduce a object_property_add_child() call into
> fw_cfg_init_io() and fw_cfg_init_mem() to link the fw_cfg device to the root
> machine object as before.
> 
> Finally with the previous change to fw_cfg_find() we can now remove the
> assert() preventing multiple fw_cfg devices being instantiated and replace
> them with a simple call to fw_cfg_find() at realize time instead. This allows
> us to remove FW_CFG_NAME and FW_CFG_PATH since they are no longer required.
> 
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
> Reviewed-by: Igor Mammedov <imammedo@redhat.com>

Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>

-- 
Eduardo